Versar, Inc.
Records under this name other than patents Versar, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,823,879 | Apparatus for cleaning pipes Lapsed on the fee record Ended Nov 30, 2012 · From the USPTO record | Lapsed on the fee record | Ended Nov 30, 2012 | From the USPTO record |
| US 6,676,768 | Methods, compositions and apparatus for cleaning surfaces Lapsed on the fee record Ended Jan 13, 2012 · From the USPTO record | Lapsed on the fee record | Ended Jan 13, 2012 | From the USPTO record |
| US 6,450,182 | Methods, compositions and apparatus for cleaning pipes Lapsed on the fee record Ended Sep 17, 2010 · From the USPTO record | Lapsed on the fee record | Ended Sep 17, 2010 | From the USPTO record |
| US 4,018,608 | Infra red photography with silver halide films using infrared and visible light exposures Term ended Term ended no later than Apr 19, 1997 · Low confidence | Term ended | Term ended no later than Apr 19, 1997 | Low confidence |
| US 4,075,370 | Passivating metallic cuttings and turnings Term ended Term ended no later than Feb 21, 1998 · Low confidence | Term ended | Term ended no later than Feb 21, 1998 | Low confidence |
| US 4,104,395 | Method for controlling diameters of microcrystalline mineral fibers Term ended Term ended no later than Aug 1, 1998 · Low confidence | Term ended | Term ended no later than Aug 1, 1998 | Low confidence |
| US 4,180,211 | High temperature compressible support and gasket material Term ended Term ended no later than Dec 25, 1999 · Low confidence | Term ended | Term ended no later than Dec 25, 1999 | Low confidence |
| US 4,229,425 | Process for making hollow carbon microspheres Formerly held Term ended Term ended no later than Oct 21, 2000 · Low confidence | Term ended | Term ended no later than Oct 21, 2000 | Low confidence |
| US 4,279,618 | Method and apparatus for analysis of total atmospheric sulfuric acid content Term ended Term ended no later than Jul 21, 2001 · Low confidence | Term ended | Term ended no later than Jul 21, 2001 | Low confidence |
| US 4,279,702 | Apparatus for making hollow carbon microspheres Formerly held Term ended Term ended no later than Jul 21, 2001 · Low confidence | Term ended | Term ended no later than Jul 21, 2001 | Low confidence |